package com.weichen.delivery.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.weichen.delivery.common.R;
import com.weichen.delivery.entity.Employee;
import com.weichen.delivery.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

//    员工登录
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1.将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //如果没有查询到则返回登陆失败结果
        if(emp==null)
            return R.error("登录失败");

        //密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password))
            return R.error("登陆失败");

        //查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus()==0)
            return R.error("当前员工被禁用");

        //登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

//    员工退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

//    新增员工
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){

//        设置初始密码123456，需要进行md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
////        获取当前登录用户id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功！");
    }

//    员工信息分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
//        构造分页构造器
        Page pageInfo = new Page(page,pageSize);
//        构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
//        添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
//        添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
//        执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

//    根据id修改员工信息
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
//        Long emp = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(emp);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功！");
    }

//    根据id查询员工信息
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        return R.success(employee);
    }
}
